Charles Armstrong
3Patents
2h-index
4Co-inventors
33Inventor score
Filing activity: Aug 16, 1984 → Oct 9, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5330502A | Rotational endoscopic mechanism with jointed drive mechanism | Human Necessities | 2,464 | Expired |
| US5114213A | High pressure water assisted mining and tunnelling machine | Fixed Constructions | 10 | Expired |
| US4593769A | Rotary rock drilling chuck | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.